CN204168020U - A kind of permanent magnet machine rotor - Google Patents
A kind of permanent magnet machine rotor Download PDFInfo
- Publication number
- CN204168020U CN204168020U CN201420363182.4U CN201420363182U CN204168020U CN 204168020 U CN204168020 U CN 204168020U CN 201420363182 U CN201420363182 U CN 201420363182U CN 204168020 U CN204168020 U CN 204168020U
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- CN
- China
- Prior art keywords
- inner support
- permanent magnet
- main shaft
- magnet machine
- machine rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of permanent magnet machine rotor of the utility model.This permanent magnet machine rotor, comprise main shaft, be connected to inner support at the outside coaxial sleeve of main shaft, inner support is symmetrically arranged with several through holes centered by the axle center of main shaft, described through hole internal fixtion has radiator, and the outer circumference surface of inner support has been arranged symmetrically with magnetic sheet centered by the axle center of main shaft.The heat that rotor produces suitably can be arrived rapidly the two ends of rotor by radiator, and heat is able to outside transmission, improves the radiating efficiency of motor, solves the problem that magneto demagnetizes because temperature is too high.
Description
Technical field
The utility model relates to a kind of magneto, particularly relates to a kind of permanent magnet machine rotor.
Background technology
Along with development and the demand of society, special to being at present to new source electric car demand for development, must consider that motor wants durable in use and safe and reliable, full waterproof sealing technical requirement is proposed to motor.In order to ensure product quality and security requirement, high-temperature region is not entered in order to make during Rated motor load in design of electrical motor process, larger surplus is left when designing, the large quality of the motor volume designed in this case is large, power of motor Energy Efficiency Ratio is poor, another kind is design is to meet national regulations, but this motor anti-overloading performance is poor, and the short permanent magnet of electrical machinery life easily demagnetizes.
Solve the demagnetization problem of magneto, must reduce the temperature of magnetic sheet, under the situation of sealing, how to find out the path of a heat radiation to magnetic sheet, be those skilled in the art's problem demanding prompt solution always.
Summary of the invention
The purpose of this utility model is the deficiency existed for prior art, provides a kind of good heat dissipation effect, prevents the permanent magnet machine rotor that magnetic sheet demagnetizes.
For achieving the above object, the technical scheme that the utility model permanent magnet machine rotor adopts is:
A kind of permanent magnet machine rotor, comprise main shaft, inner support is connected at the outside coaxial sleeve of main shaft, the outer circumference surface of inner support has been arranged symmetrically with magnetic sheet centered by the axle center of main shaft, described inner support adopts heat sink section bar to be fixedly connected with main shaft, is delivered to outside motor by the heat of magnetic sheet by inner support and main shaft.The heat that rotor produces can be delivered to rapidly the two ends of rotor main shaft by radiator, and heat is able to outside transmission, improves the radiating efficiency of motor, solves the problem that magneto demagnetizes because temperature is too high.
Described inner support is aluminium section or copper shapes.If disregard cost inner support also can adopt silver section bar, or the alloy profile that radiating efficiency is higher, as the section bar of aluminium alloy, copper alloy, silver alloy.
The lateral surface magnetic pole of the magnetic sheet on the outer circumference surface of inner support is according to the arrangement of NNSS limited cycle order, and Central Symmetry is arranged.The mode that magnetic sheet arranges according to NNSS circular order, forms a kind of incremental magnetic field in the middle of two N poles or two S poles, to realize improving magneto nominal torque, thus puies forward operating efficiency and power density reduces magneto volume and quality.NNSS can circulate for 1 time according to NNSS layout magnetic pole, also can circulate for 2 times according to NNSSNNSS layout magnetic pole, also can circulate for 3 times according to NNSSNNSSNNSS layout magnetic pole, by that analogy.
Medial surface and the lateral surface of described magnetic sheet are plane.
Inner support is symmetrically arranged with axially extending bore centered by the axle center of main shaft.
The outside of described inner support is socketed with yoke, has been arranged symmetrically with magnetic sheet in the outer side center of yoke, and yoke adopts heat sink section bar.By the yoke of socket, magnetic sheet is installed outside inner support, is convenient to processing and manufacturing, reduces machining cost, and be convenient to assembling, improve production efficiency.Yoke adopts heat sink section bar to have good heat conduction efficiency.
Yoke is aluminium section bar or copper section bar.Yoke also can adopt silver section bar, or the alloy profile that radiating efficiency is higher, as the section bar of aluminium alloy, copper alloy, silver alloy.
The outer circumference surface of described yoke is evenly equipped with dovetail groove, and described magnetic sheet cross section is trapezoidally to coordinate with dovetail groove.The dovetail groove of yoke coordinates with magnetic sheet, coordinates firmly, better can absorb the heat of magnetic sheet, improve radiating efficiency while magnetic sheet separates by convex stupefied between dovetail groove and dovetail groove.
The utility model compared with prior art, has the following advantages:
Inner support adopts heat sink section bar, the heat that rotor produces can be delivered to rapidly the two ends of rotor main shaft as a radiator, reject heat to outside motor, improve radiating efficiency, magnetic sheet is prevented to demagnetize, make the formation avoiding rotor permanent magnet high-temperature region, thus the problem that the electrical machinery life solving magneto demagnetization and cause shortens, improve the anti-overloading performance of magneto simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model rotor structure for permanent magnet motor schematic diagram.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the explosive view of permanent magnet machine rotor.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these execution modes should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in Fig. 1,2 and Fig. 3, the utility model discloses a kind of permanent magnet machine rotor, the yoke 3 comprising main shaft 1, be socketed in the inner support 2 outside main shaft and be socketed in outside inner support, at the outer circumference surface of yoke with the axle center of main shaft for center of circle Central Symmetry is furnished with magnetic sheet 4.One end of main shaft is cylindrical step axle, and the other end is square-section axle 11, and the center of inner support offers rectangle cross-shaped holes, and the square-section axle of main shaft inserts the rectangle cross-shaped holes of inner support.Inner support with the axle center of main shaft for symmetrical centre is evenly equipped with multiple through hole 21.Be connected with fan 5 at the afterbody of inner support, inner support adopts heat sink section bar, can adopt the alloy profile that aluminium section bar, copper section bar or other radiating efficiencys are higher.Yoke 3 is socketed with in the outside of inner support, yoke is also adopt heat sink section bar, alloy profile as higher in aluminium section bar, copper section bar or other radiating efficiencys, the outer circumference surface of yoke 3 is provided with magnetic sheet 4, the lateral surface magnetic pole of magnetic sheet according to the order of NNSSNNSSNNSSNNSS with the axle center of main shaft for center of circle Central Symmetry is arranged.The outer circumference surface of yoke 3 offers 16 dovetail grooves 31, and the cross section of magnetic sheet 4 is in trapezoidal insertion dovetail groove, is separated with trapezoidal convex stupefied 32 between magnetic sheet and magnetic sheet.
The employing heat sink section bar of inner support and yoke, the heat that rotor produces can be delivered to rapidly the two ends of rotor, the thermal release that inner support passes out by fan is in air, improve radiating efficiency, magnetic sheet is prevented to demagnetize, make the formation avoiding rotor permanent magnet high-temperature region, thus the problem that the electrical machinery life solving magneto demagnetization and cause shortens, improve the anti-overloading performance of magneto simultaneously.The magnetic sheet arrangement mode of NNSSNNSSNNSSNNSS, a kind of incremental magnetic field of the intermediate form in two N poles or two S poles, improves magneto nominal torque, thus puies forward operating efficiency and power density reduces magneto volume and quality.
Claims (8)
1. a permanent magnet machine rotor, comprise main shaft, it is characterized in that: be connected to inner support at the outside coaxial sleeve of main shaft, the outer circumference surface of inner support has been arranged symmetrically with magnetic sheet centered by the axle center of main shaft, described inner support adopts heat sink section bar to be fixedly connected with main shaft, is delivered to outside motor by the heat of magnetic sheet by inner support and main shaft.
2. permanent magnet machine rotor according to claim 1, is characterized in that: described inner support is aluminium section or copper shapes.
3. permanent magnet machine rotor according to claim 1, is characterized in that: the lateral surface magnetic pole of the magnetic sheet on the outer circumference surface of inner support is according to the arrangement of NNSS limited cycle order, and Central Symmetry is arranged.
4. permanent magnet machine rotor according to claim 1, is characterized in that: medial surface and the lateral surface of described magnetic sheet are plane.
5. permanent magnet machine rotor according to claim 1, is characterized in that: inner support is symmetrically arranged with axially extending bore centered by the axle center of main shaft.
6. the permanent magnet machine rotor according to any one of claim 1 to 5, is characterized in that: the outside of described inner support is socketed with yoke, has been arranged symmetrically with magnetic sheet in the outer side center of yoke, and yoke adopts heat sink section bar.
7. permanent magnet machine rotor according to claim 6, is characterized in that: yoke is aluminium section bar or copper section bar.
8. permanent magnet machine rotor according to claim 7, is characterized in that: the outer circumference surface of described yoke is evenly equipped with dovetail groove, and described magnetic sheet cross section is trapezoidally to coordinate with dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363182.4U CN204168020U (en) | 2014-07-03 | 2014-07-03 | A kind of permanent magnet machine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363182.4U CN204168020U (en) | 2014-07-03 | 2014-07-03 | A kind of permanent magnet machine rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204168020U true CN204168020U (en) | 2015-02-18 |
Family
ID=52541669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420363182.4U Expired - Fee Related CN204168020U (en) | 2014-07-03 | 2014-07-03 | A kind of permanent magnet machine rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204168020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150454A (en) * | 2018-02-10 | 2018-06-12 | 中山市科艺电机有限公司 | A kind of radiator fan for electrical motor of sewing machine |
| CN110374885A (en) * | 2018-04-13 | 2019-10-25 | 浙江三花制冷集团有限公司 | A kind of pump |
-
2014
- 2014-07-03 CN CN201420363182.4U patent/CN204168020U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150454A (en) * | 2018-02-10 | 2018-06-12 | 中山市科艺电机有限公司 | A kind of radiator fan for electrical motor of sewing machine |
| CN110374885A (en) * | 2018-04-13 | 2019-10-25 | 浙江三花制冷集团有限公司 | A kind of pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20210703 |